Warp beam



Jan. 24, 1.928.

A. BALTHASAR WARP BEAM Filed March 29, 1925 351 flotom t become warpedon the surface;

Patented Jan. 24, 1928.

UNIT-ED STA ARTHUR IBALTHASAR, OF 'MQNTCLAIR, NEW JERSEY.

WARP BEAM.

, Application filed March 29, 1923. Serial No. 628,448.

My present invention relates more particularly to supply reels of thetype known as warp beams, although certain features of the invention areapplicable in other relations.

5 In some respects the invention is related to my prior Patent No.1,416,931, granted May 23, 1922. For instance, my present invention hasamong its objects to provide a warp beam with readily adjustable heads mhaving such true and accurate fit upon the roll and the roll itselfbeing so accurate, that the heads have their plane, warp retainingsurfaces always parallel with each other and at right angles to the axisof the roll, without the necessity of truing them as a part of theadjusting operation; also so that the seam at the sliding joint betweenthe head and roll is so fine as to preclude the possibility of havingfibres of the warp thread become caught therein.

In prior devices of this type, the-roll ofthe warp beam has usually beenmade of light,- well seasoned, carefully selected wood; but, howevercarefully selected, woo'd rolls also they sag so that the heads thereof,though at right angles to the axis of the beam at the point where theyare secured, are yet not parallel with each other, and the surface ofthe roll, being no longer a true cylinder, wobbles or has an undulatingmotion when rotated, thereby alternately increasing and relaxing thetension on the warp threads as they are being wound on, or drawn off thebeam. In order to avoid these difiiculties my invention includesproviding a relatively thin-walled metal tube and preferably a steelboiler tube which obviously, from the mode of manufacture, will be ofstrictly accurate and uniform diameter both internally and externallyfrom end to end, and which being hollow and thinwalled is comparativelylight. Moreover, the final gross weight of mybeam when loaded with warpthread may be approximately the same as that of the old wooden beamsthat were wound with paper to hold the warpthreads in place.

Another feature of my invention is having the adjustable loom headstelescoped over the metallic roll, the inner circumference of the loomheads being true cylinders snugly fitting the roll. The roll being ofmetal from end to end, the loom heads may be provided with integralsplit clam ing hubs 68 which can be drawn together to tightly gripsubstantially true the roll at any part of the length thereof,

Y and without any danger of injury thereto.

inward puts the bolt tube under tension and concurrently puts the rollunder compress1on.

Another feature is the use of anchoring hooks for the warp threadsrigidly fixed within the interior of the metal roll, said hooks beingpreferably attached at uniform intervals to a bar or cleat'fixedin'theinterior of the hollow roll and freely accessible for mounting anddemounting of the warp threads through corresponding openings arrangedlongitudinally of the roll.

The above and other objects of my invention may be more fully understoodfrom the following description in connection with the drawingsfin wh1ch-Fig. 1 is a view in elevation of a complete warp beam partly in section,

Fig. 2 is a sectional view taken along the line 2-2, Fig. 1, and

Fig. 3 is a fragmentary sectional view taken along the line 3-3, Fig. 1.

Similar reference characters refer to similar parts throughout theseveral views of the drawings.

In Fig. 1 of the drawings, the various parts at the ends of the roll areshown in proportions and the actual sizes of the parts for'one type ofwarp beam may be scaled from the diameter of the heads. which in thisparticular case, measures between 9 and 10 inches. In the drawing, allof the central portion of the roll WhlCll may be very long, is brokenaway, the portion not'shown being a continuation of and identicalwiththe portions that are shown on either side thereof.

The beam comprises a hollow cylindrical metal tube 10 preferably arelatively largegauge steel boiler tube, which as willfollowasanecessaryco mode of manufacture, is o strictly uniform externaland internal diameter from end to end. Preferably its diameter is about4 inches andthe thickness of its walls about mc Fitted at the ends ofthe tube 10 are drums D, each preferably comprising a hub.

11 telescoped snugly into the roll and having an annular groove 12 atthe inner sideof its end face 13, havin an inwardly directed cone facefor snu y engaging a cor-- responding outwardly irected cone face formedon the end of the roll 10. The drums D may be secured or fixed. withrewhich may be a length of steel .boiler. tubev extending axiallythrough the length of the roll and through axial ores 15 in the hubs 11of the drums. The hubs are preferably elongated as at 16 to moresecurely en age the tube 14 to which they are threads tothat as at 17.In assembly, after one of e drums D is threaded onto the end of thetension bolt 14 the latter is inserted through the roll 10, w 'ch istelescoped at one end over the drum hub. The opposite drum is thereuponthreaded onto the o pos ts, end of the tension bolt,- concurrentelescopocmg into the corresponding end of t e roll. nuts 18'at oppositeends are threaded upon the free protruding ends of the boltand a taperpin is inserted to ri 'dly secure tother parts 19, 14 and 18. t will beseen t as the drums are tightenui, thecentral bolt 14 is placed undertension, while the 7 roll is concurrently placed under compression,forcingthe cone engaging surfaces to accurate fit and thereby centeringand truing both of them. By making the radial on the cone surfacetakeefiect outwardly on the drum groove and inwardly on the roll wall,much eater stress can be apfilied without possib 'ty of splitting the reend. Where two or more vnon axial" clamping bolts are provided, not onlydoes the assembly take longer, but the uniform distribution of thestresses is rendered more rm It g The arbors 19 and 20 are snugly fittedinto the hollow open ends of the tensionbolt 14 and may be 6f as t l asrequired, even extending tosubstantia y the center of the wargobeam, ifdesired. Of course, the

uence the mounting o ration to bore axiall therethrough, for t e entirelength thereo for which reason such constructions do not easily .admitof the convenient and effective combination .of

the tension bolt and the arbors, in the de-v face 22- snugly en agingthe corresponding inner surface of t e roll 10, and securedin 3 positionthereagainst as by screws 23 a plied from the exterior of the roll.'cured to the cleat are a succession of anchoring hooks 24 for the warpthreads, said is afforded to the anchoring hooks 26 for and demountingthe warp threads. The warp threads are knotted together at their innerends in as many groups as there are anchoring hooks 26, exposed betweenthe loom heads H, each knotted sheaf being anchored at the corres ndinghook, with the knot within the re The warp threads are then adjusted foruniform distribution upon the roll, whereupon the beamin is effected inthe usual manner.

To a apt the war beam for weaving fab and radial ribs 30, which add tothe stiff-- ness thereof and has also formed as an integral partthereof, a split clampin hub 31 of considerablelen h, projectin em oneside thereof. As s own, the sti ening ribs 30 are. only of smallthicknessmergin integrally with the base of the hub, am? one of the ribs30 similarly merges with one of the lugs .32 of the split hub, the otherlug 33 of which is relatively free. The inner diameter of the plate28 1smachined accurately rpendicular to the exterior diameter of t e roll 10so as to snugl engage the same and the hub 31 prefers lyprovides onlyminute clearance whichis taken up completely when the clamping screw 34through t e two lugs 32 and 33 1s tightened. Thus, the loom head will'beright angles-to the surface of the ro regardless of the position inwhich it it clamped thereon, and without the need for accuratel athollow and light. tively light and special truing operation. The simpleconstruction of the metal loom head, is particularly effective incombination with the metal roll to which it is clamped directly withoutthe danger of forming grooves, constrictions or other injury, whichwould be incurred if a similar element were clamped about a wooden warpbeam.

If desired, the ends of the roll 10 may be threaded and the loom headscorrespondingly modified to provide a connection similar to that shownin my prior patent above referred to. My present construction is,however, preferred. It is also understood that my presentloom head maybe substituted for that shown in my prior patent.

In the present embodiment, as shown, the rim 36 of each drum D extendsinward from its end or head 13 to provide a concavity therebetween andthe end of the roll, into which concavity the hub 31 ofthe adjacent loomhead may telescope at least partly, so that a fabric of the maximumwidth may be produced with a warp beam of overall length shorter andlighter than in constructions which do not admit of the telescopingaction or its equivalent.

From the foregoing it will be seen that my warp-beam is, in all parts,made of light metal, except the cleat 21 which is a piece of light wood.The roll of the beam is unusually'short, but amply long for a fabric ofmaximum Width. The tension bolt is The heads are comparastrong. Thedrums are construction and cooperathe roll and bolt make for simplicityand effectiveness. Consequently, the beam as a whole is strong, durable,light, not liable to injury or wear, and is BCOIlOIIll cally constructedand assembled and dislight and, their tive relation to 'mantled. Thereis practically no joint, slit,

crack or seam throughout the length of the roll because of the truecooperative surfaces of the roll and heads which are so close and tightthat no thread or fiber can become caught or snagged. For some purposesthe roll 10 can be used without the" heads. When so used, paper sheetsare inserted between certain spiral layers of warp threads to preventthe warp threads at the edges from slipping as they are wound upon theroll.

I claim: 7

1. In a warp beam, in combination, a long thin-walled metal tube ofdiameter uniform from end to end, drums at the ends of the said tube,means securing said drums at the respective ends of said tube, said tubehaving a succession of openings therein between said drums, a cleatsecured within the tube adjacentthe openings, and thread anchoring hookssecured to the cleat one at each opening and accessible respectivelythrough said openings. I

limiting heads snugly cooperating with said roll, tension drums tittedover the ends of said roll, bolt means extending through said roll andclamping said drums against the end thereof, and independent arborscoaxial with said roll protruding beyond said drums. Y

ll. In a warp beam, in combination, a

hollow boiler tube of strictly uniform diaineter from end to end,limiting heads snugly cooperating with said roll, drums contacting theextreme ends of the tube and securing .means extending longitudinallythrough the tube and threaded to said drums, whereby tension will beexerted on said securing means and concurrently therewith a compressivestra n upon said tube.

5. In a warp beam, in combination, a

hollow cylindrical boiler tube of uniform diameter throughout and havingits ends beveled, drums having hubs telescoped into the ends of saidtube and flanges grooved to accommodate the beveled ends of said tube, atension bolt member extending axially through the length of said tubeand threaded into corresponding axial bores in the drum hubs to placethe bolt member under tension and concurrently therewith exertcompressivlge strain through said drums upon said tu e.

6. The combination set forth in claim 5, in which the bolt comprises ahollow smallgauge boiler tube and in which removable supporting arborsare fitted in the open ends of said tube,

7. In a warp beam in combination, a cylindrical hollow roll of diameterstrictly uniform from end to end, drums at the ends of 7 said roll andsecured thereto, each drum having an end flange and a rim, the rims ofthe drums extending toward each other and oppositely facing limitingheads slidably mounted on said roll, said heads having hubs adapted inextreme outer position to telescope into the spaces between the ends ofthe roll and the drum rims.

8. A warp-beam formed of a boiler tube of uniform diameter throughout,heads mounted on the beam between its ends, tension drums mounted on thebeam at its oppo site ends, a tension bolt extending through the beamand having means on the ends thereof en ging the formed of "metal.

and means on the en of the bolt for engagmg the drums-and locking thesame in position onthe bolt and beam, and all the partsbemg 9.Awarp-beam formed .ofa boiler tube ofuniform diameter throughout, headsmounted'on the. beam-between its ends, tension drums mounted on the beamat its op ite ends, said drums each havin a ho ow hub fitting within thebeam, a ho ow and smooth from end to end, limit tension bolt extendingthrough the beam and having means on its ends engaging the hubs of thedrum,-a'nd means also onthe ends of the bolt for locking the drums inposition on the-bolt and beam, and all the parts being formed of metal.g

all its parts 10. A warp-beam ha made of metal, and the re being hollowheads snugly fitted upon the roll between 1ts ends and means for sec theheads to the roll, tension drums app ied to the ends "of the roll andeach having an axial hub fitted within the adjacent end of the roll, and

tension means threaded into said hubs and j also engaging the lattertohold the drums to the re] Y 11.'A hollow warp-beam of uniform dl; ameterfrom end to end and having its entire circumference smooth, limitingheads snugly fitted upon the roll between its ends and means forsecuring the heads to the roll;

. tension applied to the ends of the roll and each having a hub withinterior threads, 35

a hollow tension bolt extending through the roll and havingits endsthreaded into the hubs, and nuts on the bolt to lock the drums 13. Awarp-beam comprising a hollow rolln of uniform diameter from end to end,and havin its eir'cumferenee smooth from end to end, s having rimsoverhan ing the roll and axial hubs entering the rofi, means forclamping'the drums to the roll, and loom heads snugly fitted to the rollprovided with clamping collars adaptedto slide within the rims.

14. A warp-beam comprising a hollow roll of uniform diameter from end toend and havin its circumference smooth from end .to en drums havingcentral hubs fitting smoothly in the roll, a tubular @tension boltthreaded throughjthe axis of the-hubs, nuts threaded on the bolt andengaging the hubs to hold the drumsendwise against the roll.

Signed atNew York in the county of New York and State of New York this27th day of March, A. D. 1923.

BiALTHASAB.

